Dom,
I did fairly well last year starting around October and through February throwing the swimbait on the river, havent really been out much since then nor have I picked it up much.
I started using a 6" Optimum and a 7" Big Hammer on a 3/4oz head, as stated before throw them where you would a spinnerbait. Right up against the sparse tulles kinda deflecting off of them, in between the tulle islands, and across the grass flats.
Levy walls with grass were pretty good for me as well I could burn it back or yo yo it like a trap come out deeper to that 12' ledge toss it out there let it hit the bottom and keep it right on the break. For me it was one of those baits I just had to pick up whenever I felt the urge to fish another reaction bait to see how and where it would come into play. I was burned on it a few times, but all in all I felt like a learned a lot by taking this approach. It is the same approach I used when learning to fish the Slammer, anytime I wanted to pick up a topwater I picked up the slammer first - then my "go to bait" then back to the slammer.
Good luck my friend, the best part about fishing for me is learning new techniques to get the fish to go, I know that this is OLD HAT for many of these Delta Rats out there, but I hope it helps you in your quest.
ASH